Abstract
Al2O3/(W,Ti)C ceramic composites were prepared for use as nozzles in coalwaterslurry (CWS) industrial boilers. Effects of nozzle length, nozzle inlet angle, nozzle exit structure, atomizing air pressure and experimental temperature on the erosive wear of these ceramic nozzles have been investigated. Results showed that reasonable nozzle structure is beneficial to decrease nozzle wear. Lower atomizing air pressure can help to increase nozzle life. Thermal shock damage such as cracking and chipping was considered as the dominant reason for the failure of ceramic nozzles.
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